Honestly, we'll probably not be taking Ala Mhigo back for the sake of the Ala Mhigans, we'll be taking it back to push the Garleans out of Eorzea. Whatever you think of the Empire's policies it's still probably best to treat with them as an equal power that demands their respect.

Even then the city-state's been occupied so long that an entire generation, like Minfilia and Wilred, have grown up outside of it and probably won't have much attachment to the city once we get them back there and the reality shatters the fairy tales they were told by their parents.